My husband was saying today that his sister, his oldest sister, is scandalous and dishonest.

That's terrible. There's someone in my extended family who had a husband. He owned properties and he got in a car accident, damaging his face permanently and he couldn't walk properly.
She divorced him right after, took the kids, then took about 2 of his properties, half his money and the car and went with a guy she'd been dating the whole time.

Some people are actually dispicable.